More ARM binutils fuckage

[Michael K. Edwards]

On 12/7/06, Nicolas Pitre <nico@cam.org> wrote:
> The floating point emulation code is of course free of any floating
> point code itself, otherwise you'd end up in an infinite recursive
> state.

Of course.  But the -mfpu and -mfpe flags also seem to result in
preprocessor macros that are used when compiling libgcc to select
between register layouts, etc.  I suppose I should just look at the
kernel FP emulation code to confirm that it doesn't care about any of
those flags or use anything from a gcc header that varies based on
those flags.

> So even for the FP emulator this is not an issue.

Great.  So as long as the register allocation (frame, PIC, TP) is
either locked down or irrelevant to kernel code, the important things
are -mabi, -mfloat-abi (or -msoft-float), and struct alignment.  Is
there anything else implied by -macps beyond -mabi=apcs-gnu?

Cheers,
- Michael

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